Probability
6. Probability¶
The step function and sign function relation:
\[
u(t) = \frac{1}{2} [1 + \sgn (t)].
\]
Discrete step function and Kronecker delta function:
\[
u(n) = \sum_{k = -\infty}^n \delta(k).
\]
The step function and sign function relation:
Discrete step function and Kronecker delta function: